{"instruction": "You are an expert in event extraction. Please extract events from the input that conform to the schema definition. Return an empty list for events that do not exist, and return NAN for arguments that do not exist. If an argument has multiple values, please return a list. Respond in the format of a JSON string.", "schema": [{"event_type": "patch vulnerability", "trigger": true, "arguments": ["common vulnerabilities and exposures", "supported platform", "patch", "patch number", "vulnerability", "vulnerable system version", "releaser", "vulnerable system", "issues addressed"]}, {"event_type": "discover vulnerability", "trigger": true, "arguments": ["common vulnerabilities and exposures", "capabilities", "vulnerable system", "vulnerable system owner", "supported platform", "vulnerable system version", "time", "discoverer"]}, {"event_type": "phishing", "trigger": true, "arguments": ["damage amount", "attacker", "time", "place", "trusted entity", "attack pattern", "victim"]}, {"event_type": "ransom", "trigger": true, "arguments": ["damage amount", "time", "attack pattern", "attacker", "victim", "payment method", "tool", "place", "price"]}, {"event_type": "data breach", "trigger": true, "arguments": ["purpose", "damage amount", "victim", "time", "place", "number of data", "tool", "attack pattern", "compromised data"]}], "input": "NBC affiliate WXIA reported that the city received a ransom demand in bitcoin for $ 6,800 per unit or $ 51,000 to unlock the entire system ."}
{"patch vulnerability": [], "discover vulnerability": [], "phishing": [], "ransom": [{"trigger": "a ransom demand", "arguments": {"damage amount": "NAN", "time": "NAN", "attack pattern": "NAN", "attacker": "NAN", "victim": ["the city", "system"], "payment method": "in bitcoin", "tool": "NAN", "place": "NAN", "price": ["$ 6,800", "$ 51,000"]}}], "data breach": []}